FR429624A - Railway signal whistle - Google Patents
Railway signal whistleInfo
- Publication number
- FR429624A FR429624A FR429624DA FR429624A FR 429624 A FR429624 A FR 429624A FR 429624D A FR429624D A FR 429624DA FR 429624 A FR429624 A FR 429624A
- Authority
- FR
- France
- Prior art keywords
- railway signal
- signal whistle
- whistle
- railway
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/20—Audible signals, e.g. detonator audible signalling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR429624T | 1911-05-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR429624A true FR429624A (en) | 1911-09-27 |
Family
ID=1471938
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR429624D Expired FR429624A (en) | 1911-05-11 | 1911-05-11 | Railway signal whistle |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR429624A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3157154A (en) * | 1962-11-13 | 1964-11-17 | F H Peavey And Company | Spin ball pressure interrupter |
DE1244454B (en) * | 1964-06-09 | 1967-07-13 | Peavey Co | Frequency-modulated ultrasonic emitter |
-
1911
- 1911-05-11 FR FR429624D patent/FR429624A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3157154A (en) * | 1962-11-13 | 1964-11-17 | F H Peavey And Company | Spin ball pressure interrupter |
DE1244454B (en) * | 1964-06-09 | 1967-07-13 | Peavey Co | Frequency-modulated ultrasonic emitter |
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